找到死的JavaScript代码？ [英] find dead JavaScript code?

问题描述

我们正在重构遗留的网络应用程序，因此杀死了相当多的JavaScript代码，但我们害怕因为不确定而删除我们认为的死代码。是否有任何工具/技术可以在JavaScript中正确识别死代码？

We are refactoring a legacy web app and as a result are "killing" quite a lot of JavaScript code but we're afraid of deleting what we think is dead code due to not being sure. Is there any tool / technique for positively identifying dead code in JavaScript?

推荐答案

grep 。用它来查找函数调用。假设您有一个名为 dostuff（）的方法。在项目的根目录中使用 grep -rdostuff（）* --color 。除非您找到除定义之外的任何内容，否则您可以安全地删除它。

There's grep. Use it to find function calls. Suppose you have a method called dostuff(). Use grep -r "dostuff()" * --color on your project's root directory. Unless you find anything other than the definition, you can safely erase it.

ack 也是 grep 的显着替代品。

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